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Hei!
Jeg står helt bom fast, og får ikke til to oppgaver. kan noen hjelpe meg?

1. Given the following ANOVA table:

Source DF SS MS F
Regression 1 1,050 1,050.00 26.00
Error 13 525 40.38


Total 14 1,575

(a) Determine the coefficient of determination.(Round your answer to 2 decimal places.)

Coefficient of determination

(b)
Assuming a direct relationship between the variables, what is the correlation coefficient? (Round your answer to 2 decimal places.)

Coefficient of correlation

(c) Determine the standard error of estimate. (Round your answer to 2 decimal places.)

Standard error of estimate



Oppgave 2:

The null and alternate hypotheses are:

H0 : μ1 = μ2
H1 : μ1 ≠ μ2

A random sample of 8 observations from one population revealed a sample mean of 21 and a sample deviation of 4. A random sample of 10 observations from another population revealed a sample mean of 23 and a sample standard deviation of 4.5.

At the .05 significance level, is there a difference between the population means?

(a)
State the decision rule. (Negative amounts should be indicated by a minus sign. Round your answer to 3 decimal places.)

The decision rule is to reject H0 if t < or t > .

(b) Compute the pooled estimate of the population variance. (Round your answer to 3 decimal places.)

Pooled estimate of the population variance

(c)
Compute the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.)

Test statistic

(d) State your decision about the null hypothesis.


Håper noen flinke sjeler der ute kan hjelpe meg!!

mvh
Elisabeth

Du burde i det minste fylle ut med det du har oppnådd så langt. Det er ikke veldig vanlig at andre pløyer leksa di

håpløsjente91 wrote: The decision rule is to reject H0 if t < or t > .

Her ser det også ut som om det er noe som mangler. Har du copy-pasta fra en pdf, så er det vanlig at enkelte tegn går tapt.